Description: io_uring/af_unix: disable sending io_uring over sockets
References:
 https://bugzilla.redhat.com/show_bug.cgi?id=2253034
Notes:
 carnil> Commit fixes 0091bfc81741b ("io_uring/af_unix: defer registered
 carnil> files gc to io_uring release") in 6.1-rc1 (and backported to
 carnil> 6.0.3, 5.19.17, 5.15.75, 5.10.150 and 5.4.220).
 carnil> For mainline there are two commits doing the same, but I have
 carnil> not checked what happened betweeen 6.7-rc5 and 6.7-rc6 which
 carnil> made that necessary.
Bugs:
upstream: released (6.7-rc5) [705318a99a138c29a512a72c3e0043b3cd7f55f4], released (6.7-rc6) [69db702c83874fbaa2a51af761e35a8e5a593b95]
6.1-upstream-stable: released (6.1.68) [5a33d385eb36991a91e3dddb189d8679e2aac2be]
5.10-upstream-stable: released (5.10.204) [3fe1ea5f921bf5b71cbfdc4469fb96c05936610e]
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.6.8-1)
6.1-bookworm-security: released (6.1.69-1)
5.10-bullseye-security: released (5.10.205-1)
4.19-buster-security: N/A "Vulnerable code not present"